Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill

Palm oil mills generate about 4-5 tons of decanter cake for every 100 tons of palm fresh fruit bunch processed. Due to the high organic content, the decanter cake could be converted into adsorbent for the removal of metal ions in waste water. The decanter cake was first dried at 105oC and then carbo...

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Main Authors: Mohd Ridzuan, Nordin, Dewayanto, Nugroho, Liew, Kong Yong
Format: Article
Language:English
Published: SCUN 2009
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/4541/1/ThermoAndKineticAdsorpOnDecaCakeJSCUN2009.pdf
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author Mohd Ridzuan, Nordin
Dewayanto, Nugroho
Liew, Kong Yong
author_facet Mohd Ridzuan, Nordin
Dewayanto, Nugroho
Liew, Kong Yong
author_sort Mohd Ridzuan, Nordin
collection UMP
description Palm oil mills generate about 4-5 tons of decanter cake for every 100 tons of palm fresh fruit bunch processed. Due to the high organic content, the decanter cake could be converted into adsorbent for the removal of metal ions in waste water. The decanter cake was first dried at 105oC and then carbonized at 500oC. The resulting carbonized decanter cake was tested for removing Cd2+, Cu2+ and Pb2+ ions. Proximate analysis using thermogravimetry of decanter cake carbonized at 500oC indicated that the adsorbent contained 4% moisture, 21% volatiles, 23% fixed carbon, and 52% ash. Adsorption tests were carried out by mixing 1.0 g of decanter cake in 100 mL aqueous solution of various ions. Langmuir and Freundlich isotherm models were used to fit the isotherm experimental data. The maximum uptakes of Cd, Cu and Pb onto the carbonized decanter cake in this study were estimated to be 24, 23 and 97mg/g respectively. The adsorption kinetics was found to follow the pseudo second order kinetic model. Thermodynamic parameters including standard enthalpy. standard entropy and standard free energy were determined.
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spelling UMPir45412015-03-03T09:19:39Z http://umpir.ump.edu.my/id/eprint/4541/ Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill Mohd Ridzuan, Nordin Dewayanto, Nugroho Liew, Kong Yong QD Chemistry Palm oil mills generate about 4-5 tons of decanter cake for every 100 tons of palm fresh fruit bunch processed. Due to the high organic content, the decanter cake could be converted into adsorbent for the removal of metal ions in waste water. The decanter cake was first dried at 105oC and then carbonized at 500oC. The resulting carbonized decanter cake was tested for removing Cd2+, Cu2+ and Pb2+ ions. Proximate analysis using thermogravimetry of decanter cake carbonized at 500oC indicated that the adsorbent contained 4% moisture, 21% volatiles, 23% fixed carbon, and 52% ash. Adsorption tests were carried out by mixing 1.0 g of decanter cake in 100 mL aqueous solution of various ions. Langmuir and Freundlich isotherm models were used to fit the isotherm experimental data. The maximum uptakes of Cd, Cu and Pb onto the carbonized decanter cake in this study were estimated to be 24, 23 and 97mg/g respectively. The adsorption kinetics was found to follow the pseudo second order kinetic model. Thermodynamic parameters including standard enthalpy. standard entropy and standard free energy were determined. SCUN 2009 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4541/1/ThermoAndKineticAdsorpOnDecaCakeJSCUN2009.pdf Mohd Ridzuan, Nordin and Dewayanto, Nugroho and Liew, Kong Yong (2009) Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill. Journal of South -Central University for Nationalities (Natural Science Edition), 28 (4). pp. 1-8. ISSN 1672-4321. (Published) http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZNZK200904003.htm
spellingShingle QD Chemistry
Mohd Ridzuan, Nordin
Dewayanto, Nugroho
Liew, Kong Yong
Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title_full Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title_fullStr Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title_full_unstemmed Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title_short Kinetic and Thermodynamic Studies of Cd2+, Cu2+ and Pb2+ Removal by Decanter Cake from Palm Oil Mill
title_sort kinetic and thermodynamic studies of cd2 cu2 and pb2 removal by decanter cake from palm oil mill
topic QD Chemistry
url http://umpir.ump.edu.my/id/eprint/4541/1/ThermoAndKineticAdsorpOnDecaCakeJSCUN2009.pdf
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AT liewkongyong kineticandthermodynamicstudiesofcd2cu2andpb2removalbydecantercakefrompalmoilmill